Pluviôse was the second month of the winter quarter (mois d'hiver), starting between the 20th and 22nd of January, and ending between the 18th and 20th of February. It follows the Nivôse and precedes the Ventôse.

Like all FRC months Pluviôse lasted 30 days and was divided into three 10-day weeks called décades (decades). Each day had the name of an agricultural plant, except the 5th (Quintidi) and 10th day (Decadi) of every decade, which had the name of a domestic animal (Quintidi) or an agricultural tool (Decadi).